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在我的應用程序有兩個活動A和B，B的活性作爲對話activity.When上午在活動A拿給對話活動B，我在活動B鍵，當我按一下按鈕，它會刷新活動列表視圖艾不知道如何做到這一點thing.Can任何一個知道的請幫我解決這個問題。如何在兩個活動相同部件鏈接？
活動A
Intent i = new Intent();
i.setClass(Activity_A.this, Activity_b.class);
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(i);
活動B
public class Activity_b extends Activity{
Button yes;
@SuppressLint({ "NewApi", "NewApi", "NewApi" })
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setBackgroundDrawable(new ColorDrawable(0));
setContentView(R.layout.dialog_timeout);
this.rootView=findViewById(R.id.dialog1);
yes = (Button)findViewById(R.id.dialog_yes);
yes.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
finish();
}
});
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK)) {
/*Intent i = new Intent(Wheel_order.this,MainActivity.class);
startActivity(i);
finish();*/
}
return true;
}